Year	thousand metric tons of CO2 equivalent
1990	407333.03012500005
1991	416532.42037500016
1992	426576.81500699994
1993	420237.7199489998
1994	436357.53457799996
1995	480616.51721699996
1996	511121.56999599986
1997	481390.219757
1998	492514.1241119999
1999	508923.84889399994
2000	505341.5819529999
2001	506109.626741
2002	529509.926334
2003	539212.6322059998
2004	560320.288271
2005	570315.954334
2006	585720.66397
2007	601412.4971139998
2008	615837.513952
2009	637694.0653790003
2010	650615.9544149999
2011	662129.3188769998
2012	678579.1714349998
2013	693062.3368430003
2014	707881.881625
2015	723633.4853400001
2016	729895.1789459999
2017	738960.3454229999
2018	737680.4910130001
2019	727266.6901970003
2020	734137.8058880003